From 322910496fcc44489235f5ae3085cd8afc486268 Mon Sep 17 00:00:00 2001
From: dankito <git@dankito.net>
Date: Wed, 15 Jul 2020 22:48:29 +0200
Subject: [PATCH] Added DependencyInjector as simple dependency injection
 framework

---
 .../BankingiOSApp/ui/DependencyInjector.swift | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 ui/BankingiOSApp/BankingiOSApp/ui/DependencyInjector.swift

diff --git a/ui/BankingiOSApp/BankingiOSApp/ui/DependencyInjector.swift b/ui/BankingiOSApp/BankingiOSApp/ui/DependencyInjector.swift
new file mode 100644
index 00000000..bcf5fdae
--- /dev/null
+++ b/ui/BankingiOSApp/BankingiOSApp/ui/DependencyInjector.swift
@@ -0,0 +1,25 @@
+/**
+ Code copied from Hannes Hertach, https://medium.com/@hanneshertach/swiftui-dependency-injection-in-20-lines-b322457065a5
+ */
+struct DependencyInjector {
+    private static var dependencyList: [String:Any] = [:]
+    
+    static func resolve<T>() -> T {
+        guard let t = dependencyList[String(describing: T.self)] as? T else {
+            fatalError("No povider registered for type \(T.self)")
+        }
+        return t
+    }
+    
+    static func register<T>(dependency: T) {
+        dependencyList[String(describing: T.self)] = dependency
+    }
+}
+
+@propertyWrapper struct Inject<T> {
+    var wrappedValue: T
+    
+    init() {
+        self.wrappedValue = DependencyInjector.resolve()
+    }
+}